chore: initial project setup with backend, frontend, and infrastructure

Add complete NexaPantry application structure including:
- Docker Compose configuration with PostgreSQL, Redis, FastAPI backend, worker, frontend and Caddy
- Environment configuration template with database, auth, and service settings
- GitHub Actions CI workflow for backend/frontend linting, testing, auditing and Docker builds
- AGPL-3.0 license and comprehensive README with setup, development, and security documentation
- Backend

frontend/tsconfig.tsbuildinfo

@@ -0,0 +1 @@
+{"root":["./src/app.test.tsx","./src/app.tsx","./src/main.tsx","./src/test-setup.ts","./src/api/client.ts","./src/components/forms.tsx","./src/components/layout.tsx","./src/components/productform.tsx","./src/contexts/authcontext.tsx","./src/contexts/i18ncontext.tsx","./src/i18n/dictionaries.ts","./src/pages/adminpage.tsx","./src/pages/authscreens.tsx","./src/pages/homepage.tsx","./src/pages/inventorypage.tsx","./src/pages/onboarding.tsx","./src/pages/profilepage.tsx","./src/pages/scannerpage.tsx","./src/pages/shoppingpage.tsx","./src/types/index.ts","./vite.config.ts"],"version":"5.9.3"}